In this paper, we develop a dynamic Bertrand model of competition among hydroelectric (hydro) generators. Unlike other competitors in electricity generation markets, hydro generators’ current pricing decisions affect their future productive capacity through their impact on available water reserves. Our model assumes that each player uses a Markov strategy based on the current state of water res...

This paper considers a condition-based maintenance (i.e. CBM) model for the hydro generating unit in the deregulated power system. As the downtime cost of the generating unit varies according to the time-varying electricity price, the economic dependence among the critical component of the generating unit is dynamic. In this paper, the proposed DynamicEconomic-Dependence and proportional hazard...

Although important improvements have been achieved in the comprehension of astrophysical jets, several questions remain open, including jet formation, propagation in an external medium and survival to potentially disruptive instabilities [1]. Jets produced in laboratory are scalable to astrophysical conditions. In particular, jets produced by conical wire arrays are especially suitable to study...

In this manuscript, fractional modeling of non-Newtonian Casson fluid squeezed between two parallel plates is performed under the influence magneto-hydro-dynamic and Darcian effects. The model fractionally transformed through mixed similarity transformations. As a result, partial differential equations (PDEs) are to ordinary equation (FODE). current modeling, continuity satisfied while momentum...

Oscillations with periods on the order of 5– 10 min have been observed by instrumented spacecrafts in the Earth’s magnetosphere. These oscillations often follow sudden impacts related to coronal mass ejections. It is demonstrated that a simple model is capable of explaining these oscillations and give a scaling law for their basic characteristics in terms of the basic parameters of the problem....

Introduction The wave propagation in magneto-electro-elastic materials has gained considerable importance since last decade. The electro-magneto-elastic materials exhibit a desirable coupling effect between electric and magnetic fields, which are useful in smart structure applications. These materials have the capacity to convert one form of energy namely, magnetic, electric and mechanical ener...

When mechanically induced progressive failure of rock and the associated changes in hydro fracturing process, it is difficult to track the dynamic evolution of fractures beneath the earth. To overcome this, recent developments in hydro-fracturing technique have tended to follow hybrid approaches. An attempt was made to develop an empirical relationship to predict the Fracture length in millimet...

In hydro power plants from Romania, there is a major interest for the implementation of digital systems for monitoring and control to replace the conventional control systems for power, frequency and voltage. Therefore is necessary to develop mathematical models capable to accurately describe both dynamic and stationary behaviour of the hydro units, in order to be able to implement digital cont...

The attenuation of engine vibration transmitted to a chassis has been a major focus in the automotive community for the increase of comfort for the driver and passengers. A hydro-mount system is designed to reduce the transmission of engine vibration to the chassis. It is also used for supporting the static load by an engine weight. In this paper, we present a modeling and parameter estimation ...

This paper deals with a non-standard implicit finite difference scheme that is defined on quasi-uniform mesh for approximate solutions of the Magneto-Hydro Dynamics (MHD) boundary layer flow an incompressible fluid past flat plate wide range magnetic parameter. The proposed approach allows imposing given conditions at infinity exactly. We show how to improve obtained numerical results via refin...